from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField, TextAreaField, BooleanField, SelectField
from wtforms.validators import DataRequired, Length, Email, Regexp
from wtforms import ValidationError
from ..models import User, Role
from flask_pagedown.fields import PageDownField

class NameForm(FlaskForm):
    name = StringField('What is your name?', validators=[DataRequired()])
    submit = SubmitField('Submit')


class EditProfileForm(FlaskForm):
	name = StringField('Real name', validators=[Length(0,64)])
	location = StringField('Location', validators=[Length(0,64)])
	about_me = TextAreaField('About me')
	submit = SubmitField('Submit')

class EditProfileAdminForm(FlaskForm):
	email = StringField('Email', validators=[DataRequired(), Length(1,64), Email()])
	username = StringField('Username', validators=[DataRequired(), Length(1,64),
		Regexp('^[A-Za-z][A-Za-z0-9_.]*$', 0, 
			'Username must have only letters,numbers,dots or underscrores')])
	confirmed = BooleanField('Confirmed')
	role = SelectField('Role', coerce=int)
	name = StringField('Real name', validators=[Length(0,64)])
	location = StringField('Location', validators=[Length(0,64)])
	about_me = TextAreaField('About me')
	submit = SubmitField('Submit')

	def __init__(self, user, *args, **kwargs):
		super(EditProfileAdminForm, self).__init__(*args, **kwargs)
		self.role.choices = [(role.id, role.name)
								for role in Role.query.order_by(Role.name).all()]
		self.user = user

	def validate_email(self, field):
		if field.data != self.user.email and \
				User.query.filter_by(email=field.data).first():
			raise ValidationError('Email already registered.')

	def validate_username(self, field):
		if field.data != self.user.username and \
				User.query.filter_by(username=field.data).first():
			raise ValidationError('Username already in use.')


class PostForm(FlaskForm):
	body = PageDownField("what's on your mind?", validators=[DataRequired()])
	submit = SubmitField('Submit')

class CommentForm(FlaskForm):
	body = StringField('Enter your comment', validators=[DataRequired()])
	submit = SubmitField('Submit')